We present the results of the analysis of multiwavelength Spectral Energy Distributions ( SEDs ) of far-infrared galaxies detected in the AKARI Deep Field-South ( ADF–S ) Survey .
The analysis uses a carefully selected sample of 186 sources detected at the 90 \mu m AKARI band , identified as galaxies with cross-identification in public catalogues .
For sources without known spectroscopic redshifts , we estimate photometric redshifts after a test of two independent methods : one based on using mainly the optical – mid infrared range , and one based on the whole range of ultraviolet – far infrared data .
We observe a vast improvement in the estimation of photometric redshifts when far infrared data are included , compared with an approach based mainly on the optical – mid infrared range .
We discuss the physical properties of our far-infrared-selected sample .
We conclude that this sample consists mostly of rich in dust and young stars nearby galaxies , and , furthermore , that almost 25 % of these sources are ( Ultra ) Luminous Infrared Galaxies .
Average SEDs normalized at 90 \mu m for normal galaxies ( 138 sources ) , LIRGs ( 30 sources ) , and ULIRGs ( 18 galaxies ) a the significant shift in the peak wavelength of the dust emission , and an increasing ratio between their bolometric and dust luminosities which varies from 0.39 to 0.73 .